Machine for turning the edges of sheet material.



No. avaszf PATBNTED TBB. I1, 190s. T. c. HooK.

@MACHINE TOR TUNNING THT: EDGEs .0T `SHEET MATERIAL.

APPLICATION ILED JUNE 12.1907.

4 SHEETS--SHBBT 1.

PATENTED FEBfl-l, 1908.

T. c.' 1100K. l MACHINE-FOR TURNING THB EDGEs 0F SHEET MATERIAL.

PPLIoATIon rILnD :un: 12.1901.

- 4 slums-SHEET /ws/vron Tv-@MT auf i citizen of the United States, residing adelphia, inthe county of Philade phia and 1 vertical bearing 2in. which reci UNITED STATES rArrEN'r oFFroE.

THEoDoRE c. Boomer PHILADELPHIA* PENisYLvIA.

scams ros Timms rin nnsn's'or maar nrsman.

Pteuted Feb. 11, 1908.

animan ne Im 19.1901. wal x. 31am.

vTo all whom it may conca-n.2 l

Be it known that I, Tnnonona C. Hooi, a

at Phil- State of Pennsylvania, have invented certain Improvements inMachines'forTu the Edges of Sheet Materiahof which t e following isa specication. Y

This invention isA a machine for turning the edges `or' `sheet material, particularly in box coverin where it is necessary to fold the edges o the covering sheet over the edges and against the interior surfaces of boxes or parts thereof. V I

A chief object .of my invention is to provide a sim liied'machine, automatic in action, by w iicli the materials to be operated upon are positioned, .the sides wiped and their endsturned, and the edges turned in With certainty and efficiency; without the necessity of carrying the Wrapped box-,back

throughthe machine, or of using an under plunger or plural plungers, or of having more-than two stops for eiecting the folding operations.

, Further objects of the invention are to provide means by which the o erations can be carried on rapidly, under t 1e control of the operator, withoutv linterference with the manual manipulation of the materials to be operated upon.

In the accompanying drawings, Figure 1 is a sectional side elevation of a machneembodying my invention; Fig. 2 is a broken end elevation and section taken on the line Ae-A'of Fig. 1; Fig. 3 is a broken top plan view; Fi 4 is a sectional view taken on the `line .B- l of Fig.` 1;*Fig. 5 is a plan view showing in detail the relation of the tumblers and tuckers to the wrappers in process' of folding; Fi 6 is a plan view ofthe wrapper Iblank, and Fi 7 is a broken sectional view of the head, hol errand tumbler in relation to p, box in process of being covered. i

In the drawings, the frame 1 supports a roeates a rod 3 carrylng a head or form 4. his redis reciprocated by means of a link 5 pivotally connected thereto a lever 6 pivotally con- 50 nected to the linlr and fulcrumed on-gthe bearing 7, a link 8 pivotally connected to the lever, a lever 9 pivotally'connected to the link 8 andhavin4 a fulcrum 10, a cam 11 fixed on the revo uble shaft 12 journaled inv the bearings 13, and the connection 14 be tween the cam and the lever 9 the parts be- Athe box a carried by the head 4.

ever 6.

ing palanced by the weight 6 on the end o'f the The box or object to be covered, with the wrapper b thereon, is carried by the head 4 upwardly between the parallel side brushes 15 fixed to the frame brackets 16, the sides of the wrapper being wiped smooth by the brushes, and brought to stationary position between `the side olders 17.. The holders 17 are fixed on the inner ends of the rods 18,

through the couplings'20, the rods'having l21 and s rings 22 fixed to them on either side of t ejcouplings. 'luxnblers 23,

Vwhich reciprocate in: bearings -19 of theA vbrackets 16 and have a limited movementI having the fingers 23 and 23, are pivotally 'connected to rods 24 which reciprocate in bearings-25 of the brackets. The rods 24 are- I l'fixed to the couplin ls 20, and, by reason of the movements of t e rods 18 in tlie couplings, the holders can'be limited in movement with relation to the movements of the l tumblers and'tuckers. The'tuckers 24, on either side of the tumblers,'are fixed to and longitudinally adlsxstable on the Vcross bar 24b carried by the ro 24 The holders 1-7 are moved inward to. press i and hold the sides b of the wrapperwlnch have beenwiped by the brushes 15V ainst n -sequence therewith the tumblers 23 and the tuckers 24" are moved inward, respectively.

to tuck the ends b of the wrap ers sides and `to turn in the edges b around t e edges of the box, the compression of the springs 22 and the contact o the fingers 23 with the lower ortions of the holders revolving the turn-.

lers and causing their fingers 23 'to move', to the vertical position. r

To reciprocate the holders, tumblers and tuckers, the couplings are pivotally con,

nected'withthe links 25", the links are pivv otally connected to the arms 26 fixed'to theI journaled spindles 27, the spindles are con-- the sides of the sheet aroundthe the operation of'turning the excorners and over the edges of the-box, rises the lwithdrawal -of the tumblers and tuckers prior to the withdrawal of the holdersbeing eifected by the actions of the springs 22 an -reciprocate in bearings 41 ofthe brac the mechanism through which the cam actsupon the couplings 20. The rising head` carries the box, wlth t e cover folded as described, between the end brushes 36 fixed to the brackets 37 which are carried by the frame. These brushes wipe the wrapper 'ends b? u on the ends of the box as the latter is carrie past them to its second lace of rest, between t e holders 38. These olders press the ends of the wrapper against the ends of the box and the tumblers 39, having the fingers 39 and 39, turn the extensions of the en s of the wrapper around and within the ed es of the box ends.

ike the construction previously. described, the holders 38 are fixed to the inner ends of the rods 40, which are adapted to ets 37 and the tumblers 39 are ivoted to the inner ends of the rods 42, whic reciprocate in the bracket bear' ls 43 andhave a flexible connection wlth t e .rods 40 by the couplings ro s 43,the couplings'bei loose 011l the and the s rmgs 44 an the pins 45 fixed thereto.. hese holders and tumblers', operat' as previously described, are operated by t e links 46 plvotall connected to the couphngs 43",v the crank evers 47 fulcrumedvon the rackets 37 and pivotally connected to the links 46, the rods 48 pivotally connectcd to the crank levers 47,' the levers 49 pivotally connected Aby the universal joints 50 with the rods 48 and having the fulcrums ylythe cams 52 fixed to the shaft 12 and the connections 53 between the levers 49 cams'52. i

The shaft 12,.which drives the cams, is driven by,a spur gear 12 'fixed thereon,'a pinion 54 engaging therewith, a spline shaft 55 movab e through the pinion, a

and the clutch 56 fixed to the shaft and a loosel drivpulle 57 engaged ,to the shaft by the clutch. he clutc 'is engagedA by a fulcrumed foot lever `58 having a crescent 59 within which revolves a rooved collar 60 fixed on the shaft 55, the c utch being auto-v matically disengaged and frame rand held b thel` set screws 62 in the positio"n desired or 'roperly adjusting the positions ofthe brus es 15, the holders 17 and the tumblers-23 to the width of the box; and in the same manner the brackets 37 66 by the set screws 63 in thev position desired `sets of holding devices adapted to recipro- 1.30

are provided with the slides 37 which are moved in the ways 1 of the frame and heldfor adjusting the actions vof the brushes 36, the holders 38 and the tumblers 39 to the length of the box to be acted upon.

The rods 8, 3-1, and A48 are provided with the respective tu-rnbuckles 8', 31 and 48 for .adjusting their lengths to vary the move- 'ments of the head,

olders and tumblers.

In the o eration of the machine, it will be understoo that the cams are formed and spaced so that the head is 'ven the desired step by ste movement, an the box carried again is stopped between the holders 17, and

which between the holders 28.' The caml operates these holders and the turning dethereby, w en it has passed the brushes 15,

vlees 23 through the connecting mechanism is formed so as to move them inwardly, whereby the holders are caused to bear upon the sides of the 'box and the tuckers and tumblers to move further, by the compression of the springs 22, and turn the ends and edges of the sides.' Then the tumblers and tuckers are retracted, followed by the retraction or' the holders, and the head further elereciprocating carrying device, a holding device reciprocating transversely thereto, a turning device rhaving a motion of reciprocation relative to the movement of said holding device and a motion of oscillation, and mechanism for connecting said parts and operating them in synchronous relation.

' 2. In a machine of the class described, a reciprocatin head, `a pluralityof reciprocating olding evices, a plurality of turning devices each having a motion of reciprocation parallel to the motion of reciprocation of one of said holders and a motion of oscillation on an axis transverse to its direction of reciprocation, means for connecting each of Said turning devices with a corresponding holding c vices reciprocating transversely to the path with said couplin crassa i a Acate transversely to the' path of said head, a with said second crank arm', and a turning f plurality ci sets of turning devices adapted to device'pivotally connectedto said recipro- 50` reciprocate transversely to the path of said" cating rod. i heartland to oscillate on an axis transverse to 10.-v In a. machine of the class described, a a said line of movement, andA mechanism for', reciprocating rod having a holding device iu'operatin said head, holding devices and .thereon areciprocatin rod having aturning Vturning evices. "devicetherecma flexib ecoupling connecting 4. In a machine of the class described, a said rods so that one can move independreci'procating carrying-device, holdingldeentl'y of the other, a crank arm connected Y g a second crank arm conof said-carrying device, and Vpivoted devices nected with saidirst named" crank arm, a reciprocating relatively to said i holding .derod connected with said second crank arm, 60 vices and turned by contact therewith. v a `ulcrumed lever connected with said rod, 5. In. a machine of the class described, a and a revoluble cam. connected with said 15 reciprocating carrying device, holding de lever. l vices reciprocatin transversely to `the-path .11.' In a machine of the class' described, a of said carrying evice,"pivoted devices rerevoluble shaft, driving mechanism, means 65 `ciprocating; relatively to' said holding devices com rising a foot leverwhereby saiddriving yfand turning While said holding devices are at mec amsm is engaged and disengaged with g2()v rest, and means for operating said parts. relation to said shaft, a cam lixed on said '6. In a machine of the class described,l shaft, areciprocating and oscillating turning brushing devices, rcciprocati vholding dedevice, a reciprocatlngholding device, an

vices, and oscillating turnin evicesrecipr mechanism connecting. said cam with said rocating relatively to said ho din devices. turnin and holding devices.

l4 5 7. In a machine of the class `ecribed, a 12.v n a machine of the class described, a

"'30, a 'limited movement independen a reciprocating rod. having a holding device reciprocating tucker. and an oscillating tumthereoma reci rocating rod having'a turning bler connected thereto so as to reciprocate 75 A device pivote thereon, a flexible connection therewith. 4

between said rods whereby one isiermitted 13.y In a machine of theclass described, an

t y Hofthe oscillating andreciprocatin turning device, Other, and means for reciprocatin said rods. anda rec1procatin tucker xed on each side 8. In a machine of the class escribed, a `of and coacting Wit said turning device. 480 yset of brushes, a carrier reciprocatingpast 14. Ina machine of the class described, a l said brushes, a set of holding devices recipreciprocating device, a tucker xed to, said `35 rocating transversely to the, path of g sald device and a tumbler pivoted thereto.

reciprocating transversely to` the path of said `reclprocating carrier, a holder reciprocating 85 carrier, pivoted arms, means forvconnecting transversely to the path of reciprocation o said arms with said holdin and turning. desaid carrier, and a tumbler and tucker reci 40 vices, revoluble cams, an' means for-conrocatinjg in paths parallel to4 the path of said necting said cams with said arms. holder.

y carrier, a set of oscillating turmng devices 1,5. In a machine of the class described, a

9, In a machine of the class described, a In testimony whereof, I-have hereunto set `90y revoluble shaft, a cam ii'xed onsaid shaft, a 'my 'name this eighth dayof June, 1907, in fulcrdmedgieyer having a connection with the presence ofthe subscribin witnesses. said camfared'connected with saidlever, a THEODOR C. HOOK.v cranlr. arm connected with said rod,1asecond .l Witnessesz. 1V g crankA farm connectedwith said first named u .`Wa oNnn", Jr., cranla` arm, v a` fifqicigirceating rod connected ,.FAnaIG.' 

